20020002002100 has 108 divisors (see below), whose sum is σ = 66054299059840. Its totient is φ = 5057684712000.

The previous prime is 20020002002071. The next prime is 20020002002179. The reversal of 20020002002100 is 120020002002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 585363076 + ... + 585397275.

Almost surely, 2^{20020002002100} is an apocalyptic number.

20020002002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020002002100 is an abundant number, since it is smaller than the sum of its proper divisors (46034297057740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20020002002100 is a wasteful number, since it uses less digits than its factorization.

20020002002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170760390 (or 1170760380 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20020002002100 its reverse (120020002002), we get a palindrome (20140022004102).

The spelling of 20020002002100 in words is "twenty trillion, twenty billion, two million, two thousand, one hundred".